Folding type multi-straw freezing straw aluminum frame

Abstract

The utility model relates to a folding type multi-tube freezing straw aluminum frame which comprises a first aluminum frame and a support arranged on one side of the first aluminum frame, and the lower end of the support is fixedly connected with the first aluminum frame. A second aluminum frame is arranged on the side, away from the support, of the first aluminum frame, a connecting rod is hinged to the side face of the bottom of the support, and the other end of the connecting rod is hinged to the middle of the second aluminum frame. A transverse rod is arranged on the lower portion of the support, the two ends of the transverse rod are each provided with a U-shaped clamping block, openings of the clamping blocks point to the second aluminum frame, and the projection of the connecting rod in the horizontal direction falls into the clamping blocks; compared with an original freezing aluminum frame, the folding type multi-tube freezing straw aluminum frame has the advantages that the vertical space is fully utilized on the premise that the freezing effect is guaranteed, the storage capacity of a liquid nitrogen tank is doubled, the embryo freezing storage cost can be remarkably reduced, and the economic burden of a patient is reduced.

Description

Technical Field

[0001] This utility model relates to the medical field, and in particular to a foldable multi-tube frozen wheat tube aluminum rack. Background Technology

[0002] During assisted reproductive procedures, excess embryos from patients need to be vitrified and then stored in liquid nitrogen tanks for a long period of time using frozen straws as a medium. Due to factors such as increased environmental pollution, more unhealthy lifestyles, and delayed marriage and childbearing, the proportion of infertility is increasing, and more and more patients need assisted reproductive technology to help them conceive. This has led to a continuous increase in the number of embryos that need to be cryopreserved. However, conventional liquid nitrogen tank storage methods are inefficient, and liquid nitrogen storage space is becoming increasingly scarce.

[0003] Currently, embryos awaiting cryopreservation are typically placed in straws first, then the straws are stored in cylindrical hollow aluminum frames, which are then placed in liquid nitrogen tank containers. Finally, the liquid nitrogen tank containers are placed inside the liquid nitrogen tank for storage. For operational safety reasons, existing aluminum frames typically only utilize the lower space of the liquid nitrogen tank containers, resulting in low space utilization. If the multi-layer aluminum frame design is too complex, it will lead to a longer operation time for inserting the straws into the aluminum frames, causing the straws to remain suspended in the air for too long, which seriously affects the cryopreservation effect of the embryos. Utility Model Content

[0004] This utility model relates to a foldable multi-tube cryopreservation straw aluminum frame, which makes full use of vertical space while ensuring the freezing effect, thus doubling the storage capacity of the liquid nitrogen tank. This significantly reduces the cost and retrieval time of embryo cryopreservation and lowers the economic burden on patients. During the insertion of the straw into the aluminum frame, the first and second aluminum frames are at the same horizontal height and can be immersed in the liquid nitrogen, effectively ensuring the quality of the transfer operation.

[0005] The technical solution of this utility model is as follows:

[0006] A foldable multi-tube frozen wheat tube aluminum rack includes a first aluminum frame and a support set on one side of the first aluminum frame, the lower end of the support being fixedly connected to the first aluminum frame; a second aluminum frame is set on the side of the first aluminum frame away from the support, a connecting rod is hinged to the side of the bottom of the support, and the other end of the connecting rod is hinged to the middle of the second aluminum frame; a crossbar is set at the lower part of the support, and a U-shaped clamp is set at each end of the crossbar, the opening of the clamp pointing towards the second aluminum frame, and the horizontal projection of the connecting rod falling into the clamp.

[0007] The bracket has a connecting seat at its bottom that connects to the first aluminum frame, and a base above the connecting seat. The bracket is fixed to the upper end of the base. The connecting rods are hinged to both sides of the base, and the distance between the connecting rods on both sides of the base is slightly larger than the outer diameter of the first aluminum frame.

[0008] The base has a limiting block at the end of the lower swing of the connecting rod, and the projection of the connecting rod in the horizontal direction intersects with the limiting block.

[0009] The height of the bracket is greater than the height of the second aluminum frame.

[0010] The second aluminum frame has a fixed shaft at its hinge point with the connecting rod, and the connecting rod has a shaft hole on its side near the second aluminum frame. The diameter of the fixed shaft is slightly larger than the diameter of the shaft hole.

[0011] The width of the clamping block opening is greater than the thickness of the connecting rod, and the width of the bottom of the clamping block is less than the thickness of the connecting rod.

[0012] The first aluminum frame and the second aluminum frame are open at the top and closed at the bottom.

[0013] The first and second aluminum frames are embedded with plastic tubes with openings at the top, and the openings of the plastic tubes are provided with removable caps.

[0014] This utility model has the following beneficial effects:

[0015] 1. Compared with the original frozen wheat tube aluminum frame, the present invention's frozen wheat tube aluminum frame includes a first aluminum frame and a second aluminum frame, wherein the second aluminum frame can swing up and down; when it is necessary to insert wheat tubes into the aluminum frame, the second aluminum frame can be moved next to the first aluminum frame, ensuring that both the first and second aluminum frames are immersed in liquid nitrogen, thus effectively ensuring the quality of the embryos; when it is necessary to place the aluminum frame into the liquid nitrogen tank, the second aluminum frame is first moved to directly above the first aluminum frame, thus doubling the storage capacity of the liquid nitrogen tank, which can significantly reduce the cost of embryo cryopreservation and reduce the economic burden on patients.

[0016] 2. The limiting block of this utility model is located at the end of the lower swing of the connecting rod, which can limit and ensure that the second aluminum frame and the first aluminum frame are at the same horizontal height, prevent the second aluminum frame from moving down too much, and avoid the difference in freezing effect caused by the inconsistency in the horizontal height of the first aluminum frame and the second aluminum frame.

[0017] 3. The height of the bracket of this utility model is higher than that of the second aluminum frame, which makes it convenient to pick up the entire aluminum frame through the bracket without being interfered with by the second aluminum frame; in addition, the bracket acts as a fulcrum, which facilitates the movement of the second aluminum frame.

[0018] 4. The fixed shaft and connecting rod on the second aluminum frame of this utility model are interference fit, which makes the swing of the second aluminum frame have a certain damping, ensuring the smooth movement of the second aluminum frame and preventing the second aluminum frame from easily loosening.

[0019] 5. The clamping block of this utility model can firmly hold the second aluminum frame, preventing it from falling downwards and ensuring that the second aluminum frame and the first aluminum frame are in the same vertical direction. This significantly improves reliability and makes embryo preservation safer.

[0020] 6. The first and second aluminum frames of this utility model are open at the top and closed at the bottom, which facilitates the insertion of frozen wheat tubes; the plastic tubes embedded in the first and second aluminum frames can seal the frozen wheat tubes and prevent the embryos from being affected by the external environment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the present invention;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 This utility model Figure 2 Enlarged view of the circled area;

[0024] Figure 4 This is a partial schematic diagram of the fixed shaft position of this utility model.

[0025] The reference numerals in the figure are as follows:

[0026] 1-First aluminum frame, 2-Bracket, 3-Second aluminum frame, 4-Connecting rod, 5-Horizontal bar, 6-Clamping block, 7-Connecting seat, 8-Base, 9-Limiting block, 10-Fixed shaft, 11-Shaft hole. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] See Figures 1 to 4A foldable multi-tube frozen wheat straw aluminum rack includes a first aluminum frame 1 and a support 2 disposed on one side of the first aluminum frame 1. The lower end of the support 2 is fixedly connected to the first aluminum frame 1. A second aluminum frame 3 is disposed on the side of the first aluminum frame 1 away from the support 2. The height of the support 2 is greater than the height of the second aluminum frame 3, making it convenient to lift the entire aluminum frame through the support 2 without being interfered with by the second aluminum frame 3. In addition, the support 2 acts as a fulcrum, facilitating the movement of the second aluminum frame 3. A connecting rod 4 is hinged to the side of the bottom of the support 2. The other end of the connecting rod 4 is hinged to the middle of the second aluminum frame 3. Relying on the rotational connection of the connecting rod 4, the second aluminum frame 3 can swing up and down. When it is necessary to insert wheat straws into the aluminum frame, the second aluminum frame 3 is moved to the first aluminum frame 1. Next to an aluminum frame 1, ensure that both the first aluminum frame 1 and the second aluminum frame 3 are immersed in liquid nitrogen. When it is necessary to place the aluminum frame into the liquid nitrogen tank, first move the second aluminum frame 3 directly above the first aluminum frame 1, which can double the storage capacity of the liquid nitrogen tank. A crossbar 5 is provided at the lower part of the support 2. A U-shaped clamping block 6 is provided at each end of the crossbar 5. The opening of the clamping block 6 points towards the second aluminum frame 3. The horizontal projection of the connecting rod 4 falls into the clamping block 6. The width of the opening of the clamping block 6 is greater than the thickness of the connecting rod 4, and the width of the bottom of the clamping block 6 is less than the thickness of the connecting rod 4. The clamping block 6 can firmly hold the connecting rod 4, thereby preventing the second aluminum frame 3 from falling downwards and ensuring that the second aluminum frame 3 and the first aluminum frame 1 are in the same vertical direction.

[0029] Furthermore, the bottom of the bracket 2 is provided with a connecting seat 7 that is connected to the first aluminum frame 1, and a base 8 is provided above the connecting seat 7. The bracket 2 is fixed to the upper end of the base 8. The connecting rod 4 is hinged to both sides of the base 8. The distance between the connecting rods 4 on both sides of the base 8 is slightly larger than the outer diameter of the first aluminum frame 1. The two connecting rods 4 hold the second aluminum frame, and the first aluminum frame 1 is located between the connecting rods 4, so as not to affect the swing of the connecting rods 4.

[0030] Further, see Figure 4 The base 8 is provided with a limiting block 9 at the end of the lower swing of the connecting rod 4. The projection of the connecting rod 4 in the horizontal direction intersects with the limiting block 9. The limiting block 9 can ensure that the second aluminum frame 3 and the first aluminum frame 1 are at the same horizontal height, prevent the second aluminum frame 3 from moving down too much, and avoid the difference in freezing effect caused by the inconsistency in the horizontal height of the first aluminum frame 1 and the second aluminum frame 3.

[0031] Furthermore, the second aluminum frame 3 is provided with a fixed shaft 10 at the hinge point with the connecting rod 4, and the connecting rod 4 is provided with a shaft hole 11 on the side near the second aluminum frame 3. The diameter of the fixed shaft 10 is slightly larger than the diameter of the shaft hole 11. The fixed shaft 10 and the connecting rod 4 are interference fit, so that the swing of the second aluminum frame 3 has a certain damping, ensuring the smoothness of the movement of the second aluminum frame 3.

[0032] Furthermore, the first aluminum frame 1 and the second aluminum frame 3 are open at the top and closed at the bottom to facilitate the insertion of frozen wheat tubes; the first aluminum frame 1 and the second aluminum frame 3 are embedded with plastic tubes with open tops, and the openings of the plastic tubes are provided with removable tube caps. After the frozen wheat tubes are inserted into the plastic tubes, the tube caps are closed to seal the frozen wheat tubes and prevent the embryos from being affected by the external environment.

[0033] The working principle of this utility model:

[0034] First, move the second aluminum frame 3 downwards so that it is at the same height as the first aluminum frame 1, and immerse the lower middle parts of the first aluminum frame 1 and the second aluminum frame 3 in liquid nitrogen. Then, insert the straw into the plastic tube inside the aluminum frame. After the straw is inserted, cover the plastic tube to isolate it from the external environment. Next, lift the second aluminum frame 3 to directly above the first aluminum frame 1, and fix the connecting rod 4 with the clamp 6 to prevent the second aluminum frame 3 from sliding down. Finally, place the aluminum frame containing the frozen straw into the liquid nitrogen tank for storage. When it is necessary to remove the embryo, first remove the aluminum frame from the liquid nitrogen tank, then rotate the second aluminum frame 3 to the same height as the first aluminum frame 1, and finally open the tube cover and remove the straw.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A foldable multi-tube frozen wheat tube aluminum rack, characterized in that: The system includes a first aluminum frame (1) and a support (2) disposed on one side of the first aluminum frame (1). The lower end of the support (2) is fixedly connected to the first aluminum frame (1). A second aluminum frame (3) is disposed on the side of the first aluminum frame (1) away from the support (2). A connecting rod (4) is hinged to the side of the bottom of the support (2). The other end of the connecting rod (4) is hinged to the middle of the second aluminum frame (3). A crossbar (5) is disposed at the lower part of the support (2). A U-shaped clamp (6) is disposed at each end of the crossbar (5). The opening of the clamp (6) points to the second aluminum frame (3). The projection of the connecting rod (4) in the horizontal direction falls into the clamp (6).

2. The foldable multi-tube frozen wheat tube aluminum rack as described in claim 1, characterized in that: The bottom of the bracket (2) is provided with a connecting seat (7) that is connected to the first aluminum frame (1). A base (8) is provided above the connecting seat (7). The bracket (2) is fixed to the upper end of the base (8). The connecting rod (4) is hinged to both sides of the base (8). The distance between the connecting rods (4) on both sides of the base (8) is slightly larger than the outer diameter of the first aluminum frame (1).

3. A foldable multi-tube frozen wheat tube aluminum rack as described in claim 2, characterized in that: The base (8) has a limiting block (9) at the end of the lower swing of the connecting rod (4), and the projection of the connecting rod (4) in the horizontal direction intersects with the limiting block (9).

4. A foldable multi-tube frozen wheat tube aluminum rack as described in claim 2, characterized in that: The height of the bracket (2) is greater than the height of the second aluminum frame (3).

5. A foldable multi-tube frozen wheat tube aluminum rack as described in claim 1, characterized in that: The second aluminum frame (3) has a fixed shaft (10) at its hinge with the connecting rod (4), and the connecting rod (4) has a shaft hole (11) on its side near the second aluminum frame (3). The diameter of the fixed shaft (10) is slightly larger than the diameter of the shaft hole (11).

6. A foldable multi-tube frozen wheat tube aluminum rack as described in claim 1, characterized in that: The width of the opening of the clamping block (6) is greater than the thickness of the connecting rod (4), and the width of the bottom of the clamping block (6) is less than the thickness of the connecting rod (4).

7. A foldable multi-tube frozen wheat tube aluminum rack as described in claim 1, characterized in that: The first aluminum frame (1) and the second aluminum frame (3) are open at the top and closed at the bottom.

8. A foldable multi-tube frozen wheat tube aluminum rack as described in claim 1, characterized in that: The first aluminum frame (1) and the second aluminum frame (3) are embedded with plastic tubes with openings at the top, and the openings of the plastic tubes are provided with removable tube caps.

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